Feeding device



E. A. MARSH FEEDING DEVICE Dec, 16, 1930.

Filed March '7, 1929 Patented Dec. 16, 1930 UNITED STATES PATENT OFFICEESLI A. MARSH, OF CHICAGO, ILLINOIS ASSIGNOR, BY MESNE ASSIGNMENTS, 1'08'1. I

REGIS PAPER COMPANY, OF NEW YORK, N. Y., A COItPORATION OF NEW YORKFEEDING DEVICE Application filed larch 7, 1929. Serial No. 345,190.

This invention relates to a feeding device and more particularl to adevice adapted to fill packages until t eir contents equals an exactlypredetermined weight. The invention relates more particularly to afeeding device in which there is a main feed adapted to feed materialrapidly and an auxiliary feeding device adapted to feed material at alesser rate, and the present invention relates particularly to thearrangement for furnishing material to the auxiliary feeding device.Details and further features of the invention will appear as thedescription proceeds.

In the accompanying drawings forming a part of this specification,Figure 1 is a front view of apparatus embodying one form of j theinvention with parts broken away to disclose the construction; Fig. 2 isa view similar to Fig. 1 viewing the devlce from the left of Fig. 1,parts being broken away and parts in section in order to disclose theconstruction more clearly.

As -will be seen, the hopper flares outwardly, and underneath thisflaring ortion of t e hopper and above the line 0 discharge opening 13there is arranged an auxiliary propeller 15 adapted to dischargematerial downward through an opening 16 into passage 13. In theconstruction shown, the auxiliary pro eller 15 comprises a screw drivenin a suitab e manner from a motor 17 or other suitable power means.Geared to screw 15 to rotate at the same-time therewith are a tators 18and 19 adapted to agit te material and feed it to the screw. Thecasing20 of the auxiliary feeder is attached to the side of hopper 14 and isfed through an openin 21 in said hopper. is a guide chute 22, the loweren of which fits into-opening 21. The upper end 23 of chute 22 issomewhat smaller than the cross Inside of the hopper t ere section ofthe chute on a level with the upper agitator 19.

The operation of the device is as follows: It will be readily understoodthat in operating this device, the main part of the charge which is tobe filled into a receptacle is discharged rapidly by the main impeller11. During this time the material is drawn down into the main propellerand moves downward in hopper 14. A part of the stream is intercepted bychute 22 and guided towards the auxiliary feeding device. This auxiliaryfeeding device may be run or not, as desired, during this portion of thefilling operation. When nearly the desired weight has been dischargedinto the receptacle, the main impeller is stopped and the auxiliaryfeeding device continues in operation until the desired charge in thereceptacle is completed. It will be readily understood that when themain impeller is stopped the downward movement of material in hopper 14is stopped. With many kinds of material there is a tendency for it tobridge over opening 21 so that the auxiliary feeding device couldvsupply only that in the auxiliary casing while the mam impeller was atrest. Chute 22 is introduced to avoid this difiicult As willbe readilyapparent this chute ecomes filled with material while the main impelleris in operation and the material is moving downward through the hopper.The downwardly flaring construction of chute 22 insures that thematerial in the chute will flow downward into the auxiliary feedingdevice .even if the material in hopper 14 should bridge over the top ofchute 22;

This chute contains an ample supply of material to furnish all that willbe needed to complete the charge after the main propeller has beenstopped.

It will be readily understood that other types of propellers than thoseindicated might be used and that the main feed might be stopped byshutting a gate instead of stopping the motion of the impeller and thatother obvious changes might be made within the scope of the appendedclaims.

What I claim is:

1. In combination, a main feeding device,

. auxiliary feeding device.

3. In apparatus for charging receptacles, a main feeding device adaptedto discharge material rapidly into a receptacle, an auxiliary feedingdevice adapted to discharge material more slowly into the samereceptacle, a hopper in position to supply material to said main device,and a chute extending from said auxiliary device into said hopper, saidchute being large enough to enclose as much material as is fed by theauxiliary device into one receptacle.

4. In apparatus for charging receptacles, a main feeding device adaptedto discharge material rapidly into a receptacle, an auxiliary feedingdevice adapted todischarge material more slowly into the samereceptacle, a hopper in position to supply material to said main device,and a chute extending from said auxiliary device into said hopper, saidchute leading in the same general direction as the line of travel of thematerial in said hopper to said main device.

5. In apparatus for charging receptacles, a main feeding device adaptedto discharge material rapidly into a receptacle, an auxiliary feedingdevice adapted to discharge material more slowly into the samereceptacle, a hopper in position to supply material to said main device,and a chute extending from said auxiliary device into said ho per,

said chute leading in the same general irection as theline of travel ofthe material in said hopper to said main device and said chute expandingtowards said auxiliary device.

6. In combination, a cylindrical casing having a. peripheral opening, arotary impeller Ward from an opening throu h the side of said hopper andguiding materlal to said auxiliary device, said chute expanding downwardly.

In testimony whereof I have hereunto signed my name to this secification.

E LI A. MARSH.

in said casing adapted to discharge material through said opening, ahopper above the casing and adapted to guide material thereinto, anauxiliary feeding device discharging material in the same direction assaid main device, and a chute extending upward into said hopper andleading to said auxiliary device.

7. In combination, a cylindrical casing having a substantially verticalaxis, a peripheral discharge opening and a centrally located inlet inits upper end, a main impeller in said casing, an upwardly flaring hoper above said inlet opening, an auxiliary fee ng device dis-

